Don't see a navigation bar on a modally presented view controller? Here's the solution: subclass UIStoryboardSegue, override perform: and in its definition create an ad-hoc navigation controller. Then, use this custom segue in the Storyboard builder.

ADModalSegue.h

//
//  ADModalSegue.h
//
//  Created by Jeffrey Kereakoglow on 11/28/14.
//  Copyright (c) 2014 Alexis Digital. All rights reserved.
//

@import UIKit;

@interface ADModalSegue : UIStoryboardSegue

@end

ADModalSegue.m

//
//  ADModalSegue.m
//
//  Created by Jeffrey Kereakoglow on 11/28/14.
//  Copyright (c) 2014 Alexis Digital. All rights reserved.
//

#import "ADModalSegue.h"

@implementation ADModalSegue

-(void)perform {
    UIViewController *svc = self.sourceViewController;
    UIViewController *dvc = self.destinationViewController;
    UINavigationController *nc;
    
    // Create an ad-hoc navigation controller simply so we can access its
    // navigation bar.
    nc = [[UINavigationController alloc] initWithRootViewController:dvc];

    [svc presentViewController:nc
                      animated:YES
                    completion:nil];
    
}

@end

Use with Storyboards

The Storyboard Builder is smart enough to know that any class with "segue" in the file name is, in fact, a segue.

After adding this to your project, you will be able to select it as a segue option in Storyboard Builder. This particular file will be seen as modal segue in Storyboard Builder.